Other old friends are waiting too: sorrow, loss, joy, vengeance, hatred, friendship, love, longing, fear, regret, diamorphine, self-destruction and mortal danger – they are all lined up to welcome him.

With a little over 20 years between the two movies, director Danny Boyle leads the viewer on a deliberately self-referential journey, with clips and music from the original release echoing through into the present.